M&J Roofing and Construction | Roofing Services in Philadelphia, PA 19130

In our climate, warm, moist air from your home rises into the attic. Without adequate ventilation, this moisture condenses on the cold underside of your roof deck, soaking the insulation and promoting mold or rot. We install balanced intake and exhaust systems to create continuous airflow, expelling this damp air and keeping your attic dry, which preserves your insulation's effectiveness and protects your roof structure.

An ice dam is a ridge of ice that forms at your roof's edge, preventing melting snow from draining. It's common here due to heat loss from attics warming the roof. The trapped water can seep under shingles, causing leaks. Our prevention focuses on two key steps: first, we improve attic insulation and sealing to minimize heat escape; second, we install a waterproof membrane (ice and water shield) along the eaves, creating a critical barrier against any water that does get behind the shingles.

At M&J, we believe in lasting solutions. While we'll promptly repair any active leak to prevent immediate interior damage, our priority is diagnosing why the ice dam formed. We'll conduct a thorough inspection of your attic's insulation and ventilation—the most common culprits in Philadelphia. By correcting these underlying issues, we don't just fix the current leak; we implement a system to prevent future ice dams and protect your home for seasons to come.